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AISI 410 Stainless Steel vs. R31537 Cobalt

AISI 410 stainless steel belongs to the iron alloys classification, while R31537 cobalt belongs to the cobalt alloys. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 410 stainless steel and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 16 to 22
14 to 23
Fatigue Strength, MPa 190 to 350
310 to 480
Poisson's Ratio 0.28
0.29
Reduction in Area, % 47 to 48
13 to 23
Shear Modulus, GPa 76
87
Tensile Strength: Ultimate (UTS), MPa 520 to 770
1000 to 1340
Tensile Strength: Yield (Proof), MPa 290 to 580
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1530
1360
Melting Onset (Solidus), °C 1480
1290
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 30
13
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 1.9
8.1
Embodied Energy, MJ/kg 27
110
Embodied Water, L/kg 100
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 110
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 860
780 to 1990
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19 to 28
33 to 44
Strength to Weight: Bending, points 19 to 24
26 to 32
Thermal Diffusivity, mm2/s 8.1
3.4
Thermal Shock Resistance, points 18 to 26
24 to 32

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.14
Chromium (Cr), % 11.5 to 13.5
26 to 30
Cobalt (Co), % 0
58.9 to 69
Iron (Fe), % 83.5 to 88.4
0 to 0.75
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 0.75
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0

Comparable Variants